How can the degree of compaction of Items 104, 200, and 201 be determined?

The degree of compaction of items in construction and materials engineering is most accurately assessed using a Field Density Test. This test measures the density of the compacted material in the field conditions, providing a quantitative assessment of how well the material has been compacted compared to its known maximum density. By comparing the in-situ density to the standard values, engineers can determine if the compaction meets the required specifications for structural stability and integrity.

Visual inspection may offer some qualitative insights, but it cannot provide precise or reliable measurements of compaction. Moisture content tests are important for understanding the conditions under which materials are compacted, as moisture affects compaction efficiency, but they do not measure the degree of compaction itself. Grain size analysis provides useful information about the distribution of particle sizes in a material, which influences compaction behavior, but it does not directly assess how compacted the materials are in situ. Thus, the Field Density Test stands out as the most direct and reliable method for determining the degree of compaction.